Mississippi state and federal officials have confirmed an outbreak of a strain of bird flu not reported in the U.S. since 2017, with quarantine and depopulation efforts already underway.

When biologists first noticed increased bird flu cases in October, 49 cases had been reported. But because they can only test a limited number of carcasses, the true number is likely higher.

After a catastrophic outbreak of bird flu devastated southern elephant seal populations in 2023, scientists are on high alert.

Wisconsin's egg production industry faces a significant setback as avian influenza outbreaks at multiple farms result in the euthanasia of over four million chickens.

The confirmation last week of H5N1 bird flu in northern elephant seals at California’s Año Nuevo State Parkhas put wildlife managers and public health officials on alert.

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DES MOINES, Iowa (AP) — An infectious and ...

It is the first confirmed outbreak in any elephant seal population in California. As a result of the outbreak, the elephant seal viewing area at Ano Nuevo State Park has been closed and tours have ...